UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rAvBtxLtlRFPX89Wi6okTKY1WQkzvVORT2rOlGGuF6o=' 
WHERE 
  key_id = 'a1621e0cf48164e95a8a58df30ae16fb52bd77bbab0f1a2e3324910970a736a6' 
  AND (
    token = 'rAvBtxLtlRFPX89Wi6okTKY1WQkzvVORT2rOlGGuF6o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )